TY  - GEN
AU  - Gao,Ting
AU  - Yan,Fengli
AU  - van Enk,S J
TI  - Permutationally invariant part of a density matrix and nonseparability of N-qubit states
SN  - 1079-7114
PY  - 2014///0725
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1103/PhysRevLett.112.180501
ER  -